Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Kb1 draw
3 Ke1 draw
4 Ra6 draw
5 Rf1 draw
6 Rf7 draw
7 Rf8 draw
8 Rg6 draw
9 Rh6 draw
10 Kb2 loss in 2 half-moves
11 Kcc2 loss in 2 half-moves
12 Kcd2 loss in 2 half-moves
13 Kdc2 loss in 2 half-moves
14 Kdd2 loss in 2 half-moves
15 Ke2 loss in 2 half-moves
16 Rc6 loss in 2 half-moves
17 Rd6 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Rf2 loss in 2 half-moves
20 Rf3 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rf5 loss in 2 half-moves